.app-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.app-title {
  color: white;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.content-wrapper {
  max-width: 1400px;
  margin: 0 auto;
}

.page-header {
  margin-bottom: 24px;
}

.page-title {
  font-size: 24px;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 8px;
}

.page-description {
  color: #666;
  font-size: 14px;
}

.card-hover {
  transition: all 0.3s ease;
  cursor: pointer;
}

.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.gradient-card {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.gradient-card .ant-card-head-title {
  color: white;
}

.result-card {
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  padding: 16px;
  margin-top: 16px;
}

.loading-spinner {
  text-align: center;
  padding: 40px;
}

.success-message {
  background: #f0f9ff;
  border-left: 4px solid #0ea5e9;
  padding: 16px;
  border-radius: 4px;
  margin: 16px 0;
}

.error-message {
  background: #fef2f2;
  border-left: 4px solid #ef4444;
  padding: 16px;
  border-radius: 4px;
  margin: 16px 0;
}

